SAFETYLIT WEEKLY UPDATE

We compile citations and summaries of about 400 new articles every week.
RSS Feed

HELP: Tutorials | FAQ
CONTACT US: Contact info

Search Results

Journal Article

Citation

Li G, Wu AD, Marshall SK, Watson RJ, Adjei JK, Park M, Saewyc EM. SSM Popul. Health 2019; 7: e100350.

Affiliation

Stigma and Resilience Among Vulnerable Youth Centre, School of Nursing, University of British Columbia, T201 2211 Wesbrook Mall, Vancouver, BC, Canada V6T 2B5.

Copyright

(Copyright © 2019, Elsevier Publishing)

DOI

10.1016/j.ssmph.2019.100350

PMID

30723767

PMCID

PMC6351427

Abstract

There is limited research on evaluating nonrandomized population health interventions. We aimed to introduce a new approach for assessing site-level longitudinal effects of population health interventions (SLEPHI) by innovatively applying multiple group multilevel (MG-ML) modeling to repeated cycles of cross-sectional data collected from different individuals of the same sites at different times, a design commonly employed in public health research. For illustration, we used this SLEPHI method to examine the influence of Gay-Straight Alliances (GSAs) on school-level perceived safety among lesbian, gay, and bisexual (LGB) and heterosexual (HET) adolescents. Individual-level data of perceived school safety came from 1625 LGB students (67.4% female; mean age, 15.7 years) and 37,597 HET students (50.2% female; mean age, 15.4 years) attending Grades 7-12 in 135 schools, which participated in 3 British Columbia Adolescent Health Surveys (BCAHS: 2003, 2008, 2013) in Canada. School-level data of GSA length since established were collected by telephone in 2008 and 2014. Nested MG-ML models suggested that after accounting for secular trend, cohort effects, measurement error, measurement equivalence, and student age, GSA length linearly related to increased school-level perceived safety among LGB students (b = 1.57, SE = 0.21, p <.001, β = 0.32) and also among HET students (β = 0.34 in 2003 & 2013, β = 0.32 in 2008) although statistical differences between years for HET youth were likely due to the large sample size. By conducting MG-ML analysis on repeated cross-sectional surveys, this SLEPHI method accounted for many confounding factors and followed schools for a longer period than most longitudinal designs can follow individuals. Therefore, we drew a stronger conclusion than previous observational research about GSAs and LGB students' well-being. The SLEPHI method can be widely applied to other repeated cycles of cross-sectional data in public health research.


Language: en

Keywords

Adolescents; Canada; DiD, difference-in-differences; GSA, Gay-Straight Alliances; Gay-Straight Alliances; ITS, interrupted time series; LGB, lesbian, gay, and bisexual; LRV, latent response variable; Lesbian/gay/bisexual; MG-ML; MG-ML, multiple group multilevel; RCT, randomized controlled trial; SLEPHI; SLEPHI, site-level longitudinal effects of population health interventions

NEW SEARCH


All SafetyLit records are available for automatic download to Zotero & Mendeley
Print